# nitz

Most popular questions and responses by nitz
1. ## physics

1.) Draw a set of 1.5-volt cells in a series circuit so that the total battery voltage is 9 volts. A.) how many cell does it take? B.) show polarity connection. C.) suppose you connected one of the cells in part (a) so that it was backwards. what would the

asked on September 30, 2012
2. ## probability

a couple is planning to have three children. Find the probability that the couple will have: a.) 2 girls and 1 boy? b.) 2 girls followed by a boy? c.) at least 1 girl? please answer my question thank you very much, have a good day!

asked on September 21, 2012
3. ## physics

Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?

asked on September 30, 2012
4. ## physics

1.) Draw a set of 1.5-volt cells in a series circuit so that the total battery voltage is 9 volts. A.) how many cell does it take? B.) show polarity connection. C.) suppose you connected one of the cells in part (a) so that it was backwards. what would the

asked on September 30, 2012
5. ## statistics

suppose 45 students in an organization are male and 55 are female. Ten females and 15 males in the organization are graduating students. What is the probability that a: a.) student chosen at random is male or a graduating student? b.) students chosen at

asked on September 21, 2012
6. ## physics

Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?

asked on September 30, 2012
7. ## physics

A 2000 watt heating element is connected in parallel to a 100 watt bulb across 200 volt source. Determine the total power and heat generated in the combination for 1.5 hours. help!

asked on February 10, 2013
8. ## physics

If electrical energy cost 5.00 per kilowatt hour, what will be the daily cost of using a 50 watt bulb for 4 hours a day when connected across a 220 volt source?, help please!

asked on February 10, 2013
9. ## physics

a radiation survey meter observed gamma radiation of 150 mR/hr. The air field ionization chamber has a volume of 580 cubic cm. If the electron generated by the radiation in the chamber are swept out by an electric field, what is the current produced?

asked on December 8, 2012
10. ## probability

a pair of dice is tossed. What is the probability of getting a total of 6?

asked on September 21, 2012
11. ## probability

a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

asked on September 21, 2012
12. ## physics

determine the amount of heat generated per minute by a 120 volt lamp which takes 0.5 amperes. thanks!

asked on February 10, 2013
13. ## radiation physics

a Geiger ionization chamber contains 60 cubic cm of air and records 500 mR/min. calculate (a). the current produce by the chamber (b). the total number of ion pairs produced per hour of exposure. please answer, thank you!,

asked on December 9, 2012
14. ## physics

a Geiger ionization chamber contains 60 cubic cm of air and records 500 mR/min. calculate (a). the current produce by the chamber (b). the total number of ion pairs produced per hour of exposure. please answer, thank you!,

asked on December 8, 2012
15. ## statistics

State the null and alternative hypothesis for the following: 1.) A small local bank wants to check if the average daily balance is not higer than 3500 for its individual saving account. Ho: Ha: 2.) A researcher wants to find out if the mean weekly wage of

asked on September 30, 2012
16. ## statistic and probability

a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

asked on September 20, 2012